Atmel QT113B
The QT113B (QT113B) charge-transfer (QT™) touch sensor is a self-contained digital IC capable of detecting nearproximity or touch. It will project a proximity sense field through air, and any dielectric like glass, plastic, stone, ceramic, and most kinds of wood. It can also turn small metal-bearing objects into intrinsic sensors, making them responsive to proximity or touch.FEATURES
● Number of Keys:● One
● Configurable as either a single key or a proximity sensor
● Economy:
● Less expensive than many mechanical switches
● Only one external part required – a low-cost capacitor
● Signal processing:
● Consensus filter for noise immunity
● Sensitivity easily adjusted
● 100% autocal for life – no adjustments required
● 10 s, 60 s, infinite auto-recal timeouts (strap options)
● Toggle mode for on/off control (strap option)
● Interface:
● Digital output, active high
● Moisture tolerance:
● Increased moisture tolerance based on hardware design and firmware tuning
● Power:
● 2.5 V to 5 V, 600 µA single supply operation
● Package:
● 8-pin SOIC
●
APPLICATIONS
:● Light switches, appliance control, access systems, elevator buttons, proximity sensor applications, security systems, pointing devices, consumer devices, mechanical switch or button
● Patents:
● QTouch® (patented charge-transfer method)
● HeartBeat (monitors health of device) 9525D–AT42–05/2013 9525D–AT42–05/2013 1.